Device for heating air-brake systems.



- 3. s. SHOEMAKER.

DEVICE FOR HEATING AIB'BRAK'E SYSTEMS. APPLICATION nun MAY 29, 1912.

1,079,611 1 Paten ted Nov. 25, 1913.

. were snares rArn ror no JAMES s. snomraxnn, or Harmony), INDIANA, Assieucn on ONE-THIRD T0 LLOYD w. reasons, or HAMMOND, momma.

DEVICE FOR HEATING AIR-BRAKE SYSTEMS.

i ,ofom 1.-

Specification 0r LettersBatent. te t N0 1913 a plication and Mey'fi 19, eris No. seam.

To all who-m it may concern c Beit knownthait I, JAMES S. Summar zer, a citizen of. the United States, residin' at Hammond, in the county of Lake and State being under compression, the moisture, in,

. the air condenses in the pipes and freezes in cold weather, and. f such freezing occurs air is heated as it passes from the main fee,

at a vital point, as a bend in the ipe, as at the couplings, or at some operative part of the, system, the brakes may fail to work. Should the freezing occur in a boupling, as between the tender and next coach, the entire system would be rendered inoperative.

The object of the present invention rsides in the provision ofmeans whereby the ervoir on the engine into the system.

A further object of the invention resides in the utilization of the exhaust steam from-- the air-pump as the heating medium, and

. this particularly for the reason that the action of the pump is automatically regulated by the pressure of airin the reservoir, in consequence of which exhaust steam will be fed to the heating chamber simultaneously with and with the same frequencyas the operations of the brakes, each-reduction the or air-pressure automatically startin evico air-pump, whereby the heati would not only be self-regulating; but only so much steam utilized as would-be necessary for the purpose, and without adding to the operating expense of the locomotive.

Figure 1 is a view in elevation partly 1n section illustrating the improved heating device. Fig. 2 is a broken elevation illustrating conventiona ly a Well known type of automatic controlling means for the pump by the pressurein thereservoir.

. In the at. ompanying'drawing, showing a preferred embodiment of my invention, the reference numeral 1 represents the air-pump on a locomotive operated by steam, the particular type of pump being immaterial, and by which a storage reservoir 2 is supplied by ir 'imdr pressure, a

-hai"ing communication with the or fireman.

, I he 3 furnishing communication between t e pump and reservo r the relative location of the pump and reservoir also being immaterial, and which may be positioned on the locomotive as may be mostconvenient and practicable.

; Suitably mounted on the locomotive is a form, one end of which has connection with theexhaust portof the air pump, as by a pipe 5, and t e opposite end of-which has a heating tank 4, preferably cylindrical in y pipe 6, preferably leading to the smoke stack, or through which the steam may pass direct to the atmosphere. Disposed within the heating tankis a coil 'of pipe 7,

air reservoir 2 by means of a pipe 8, and with the the air reservoir through the coil, which'is heated by the exhaust steam from the airpump passing through the heating tank, and thence into the train-pipe (not shown),

.to the brake operating appliances. By the novel arrangement and codperation of elements above described, I rovide a1 efficient and simple means for eating t K; air as'it passes from the main air-reservoir-into the train pipe, and as the air pump on a locomotive is seldom inactive, at least not for any extended period of time, and as the consumption of air automatically regulates the operation of the air-pump the heatihg tank is automatically supplie'dwith exhaust steam for heating the coil therein at each operation of the pump, thus heating. the air without any added expense, and without requiring any attention or regulation whatever on the part of the engineer A type of automatic airpump control by the reservoir pressure is i1 ustrated in Fig. 2, and indicated generally-by 19, no; further detailed description being deemed necessary.

- Having thus described my invention, what is claimed is:

I. A deviceofthe character described, the combination with an air-brake system comprising cha r-pump operated by steam, .a'

main air reservoir,.-a pipe connecting said reservoir with the tramplpe and provided with a plurality of coils, a-heating tank trainfpipe by a pipe 9,, the air passin from within which said coils are disposed, and

means for supplying said tank with exhaust steam froznt e air-pump.

2. A device of the character described, the

cornbimition with an air-brake system, comprising an air-pump operated by steam, of

'a n'ialnair-reservoir,supplied with air under pressure by saidpump, the pressure of air automatically'controiling the operation of saidpump, means for supplying the brake operating means with air from said reservoig, and means for heating said air with theiexhaust steam 0f the pump, whereby the operation of the pump and supply of heat lu in medium are both controlled by the variu 1e pressure of the air.

In testimony whereof I aflix my signature in presence of two witnesses. 

